Body Composition Monitoring for Determination of the Fluid Status in Volunteers Undergoing Intravenous Fluid Therapy (BCM_Volunteer)
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About
This volunteer study tests a recently developed whole-body bioimpedance spectroscopy device called Body Composition Monitor (BCM) which measures the body composition (i.e. the water content of the body).
Specifically, the investigators will evaluate the use of BCM for correct detection of intravenous administered crystalloids in the volunteers´ fluid compartments. Furthermore we will test the change over time of the volunteers´ volume status after an intravenous fluid therapy.
Full description
Technically assisted assessment of volume status may be useful to direct fluid administration.
As a prerequisite the investigators will test a recently developed whole-body bioimpedance spectroscopy device to determine fluid status in volunteers after an intravenous fluid therapy.
The correlation of infused fluid and change of the fluid status measured with Body Composition Monitor (BCM, Fresenius Medical Care, Germany) is still unknown.
Using a three-compartment physiologic tissue model, BCM determine total body fluid volume (TBV), extracellular volume (ECV), intracellular volume (ICV) and fluid overload (FO) as surplus or deficit of 'normal' extracellular volume. The BCM device measures resistance and reactance at 50 discrete frequencies covering the frequency spectrum from 5 to 1000 kHz through the entire patient via 4 electrodes placed on the wrist and ankle.
Fifteen volunteers will be enrolled in a randomized, blinded cross over study. After randomisation into one of two treatments the volunteer will receive either an iv isotonic fluid therapy of Elo-mel® (Fresenius Kabi Austria) at a rate of 0,50ml/kg/min for one hour or no fluid therapy. At the second study day the volunteer will obtain the opposite treatment.
We will perform BCM measurements every 10 minutes before, during and after the treatment for 6 hours or until the BCM results return to baseline. The results are stored on a BCM patient card automatically.
The main objective of this study is to detect the administered iv fluid in the extracellular compartment respectively in FO, TBV and ICV.
Secondary outcome parameters include the change over time of ICV, ECV, TBV and FO after the iv therapy at the study day "Fluid Therapy".
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
- Healthy male volunteers aged between 18 and 50 years
- BMI < 30 kg/m2
- Written informed consent given by volunteers after being provided with detailed information about the nature, risks, and scope of the clinical study
Exclusion criteria
- Implanted pacemaker or defibrillator
- Limb amputation identified by physical examination
- Known allergy or hypersensitivity to Elo-Mel
- Abnormalities in Blood pressure (Hypotension with a systolic BP < 90 mmHg and hypertension with a systolic BP > 160 mmHg) after 5 min resting
- Cardiac insufficiency (NYHA≥ 2)
- Renal insufficiency (GFR ≤ 60 ml/min)
Trial design
Primary purpose
Allocation
Interventional model
Masking
15 participants in 2 patient groups, including a placebo group
Trial contacts and locations
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Data sourced from clinicaltrials.gov
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